kernel/include/acpi/platform/acenv.h, branch linux-4.1.y

ACPICA: Utilities: split IO address types from data type models.

2015-04-14T12:51:52Z

ACPICA commit aacf863cfffd46338e268b7415f7435cae93b451 It is reported that on a physically 64-bit addressed machine, 32-bit kernel can trigger crashes in accessing the memory regions that are beyond the 32-bit boundary. The region field's start address should still be 32-bit compliant, but after a calculation (adding some offsets), it may exceed the 32-bit boundary. This case is rare and buggy, but there are real BIOSes leaked with such issues (see References below). This patch fixes this gap by always defining IO addresses as 64-bit, and allows OSPMs to optimize it for a real 32-bit machine to reduce the size of the internal objects. Internal acpi_physical_address usages in the structures that can be fixed by this change include: 1. struct acpi_object_region: acpi_physical_address address; 2. struct acpi_address_range: acpi_physical_address start_address; acpi_physical_address end_address; 3. struct acpi_mem_space_context; acpi_physical_address address; 4. struct acpi_table_desc acpi_physical_address address; See known issues 1 for other usages. Note that acpi_io_address which is used for ACPI_PROCESSOR may also suffer from same problem, so this patch changes it accordingly. For iasl, it will enforce acpi_physical_address as 32-bit to generate 32-bit OSPM compatible tables on 32-bit platforms, we need to define ACPI_32BIT_PHYSICAL_ADDRESS for it in acenv.h. Known issues: 1. Cleanup of mapped virtual address In struct acpi_mem_space_context, acpi_physical_address is used as a virtual address: acpi_physical_address mapped_physical_address; It is better to introduce acpi_virtual_address or use acpi_size instead. This patch doesn't make such a change. Because this should be done along with a change to acpi_os_map_memory()/acpi_os_unmap_memory(). There should be no functional problem to leave this unchanged except that only this structure is enlarged unexpectedly. Link: https://github.com/acpica/acpica/commit/aacf863c Reference: https://bugzilla.kernel.org/show_bug.cgi?id=87971 Reference: https://bugzilla.kernel.org/show_bug.cgi?id=79501 Reported-and-tested-by: Paul Menzel Reported-and-tested-by: Sial Nije Signed-off-by: Lv Zheng Signed-off-by: Bob Moore Cc: All applicable Signed-off-by: Rafael J. Wysocki

ACPICA: Update Copyright headers to 2015

2015-02-05T14:31:43Z

ACPICA commit 8990e73ab2aa15d6a0068b860ab54feff25bee36 Link: https://github.com/acpica/acpica/commit/8990e73a Signed-off-by: David E. Box Signed-off-by: Bob Moore Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki

ACPICA: acpidump: Add memory/string OSL usage to improve portability

2014-07-08T12:22:27Z

This patch adds code to use generic OSL for acpidump to improve the portability of this tool. Lv Zheng. Signed-off-by: Lv Zheng Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki

ACPICA: Utilities: Introduce acpi_log_error() to improve portability

2014-07-08T12:22:26Z

Invocations like fprintf(stderr) and perror() are not portable, this patch introduces acpi_log_error() as a replacement, it is implemented using new portable API - acpi_ut_file_vprintf(). Note that though acpi_os_initialize() need to be invoked prior than using this new API, since no users are introduced in this patch, such invocations are not added for applications that link utprint.c in this patch. Futher patches that introduce users of acpi_log_error() should take care of this. This patch is only useful for ACPICA applications, most of which are not shipped in the Linux kernel. Note that follow-up commits will update acpidump to use this new API to improve portability. Lv Zheng. Signed-off-by: Lv Zheng Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki

ACPICA: OSL: Update environments to improve portability

2014-07-08T12:22:25Z

This patch contains some environment updates that will be used by acpidump because: 1. The follow-up commits will release osunixxf.c to the Linux kernel for acpidump to link, and 2. Such environment settings will be used to avoid linkage issues. Signed-off-by: Lv Zheng Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki

ACPICA: Update ACPICA copyrights to 2014.

2014-02-10T23:30:25Z

Update ACPICA copyrights to 2014. Includes all source headers and signons for the various tools. Signed-off-by: Bob Moore Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki

ACPICA: Utilities: Cleanup declarations of the acpi_gbl_debug_file global.

2014-01-08T14:31:39Z

This global is acting as an OSL global variable, implemented in the oswinxf.c and osunixxf.c. This patch cleans up the definition of this variable so that new utilities do not need to define it in order to link. Linux kernel behaviour is not affected as the changes only applies to the ACPICA userspace utilities which are not shipped in the kernel currently. Signed-off-by: Lv Zheng Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki

ACPICA: Update ACPI example code to make it an actual working program.

2014-01-08T14:31:38Z

Previously, the example code (tools/examples) showed the ACPICA init code, but was not an actual working program. Added ACPI tables to make it actually function. Linux kernel behaviour is not affected as the change only applies to the ACPICA userspace utilities which are not shipped in the kernel currently. Signed-off-by: Bob Moore Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki

ACPICA: Update acpidump related header file changes.

2013-10-31T13:37:35Z

This patch updates header files used by acpidump to reduce the source code differences between Linux and ACPICA upstream. This patch does not affect the generation of the Linux kernel binary. Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki

ACPICA: Update compilation environment settings.

2013-10-31T13:37:35Z

This patch updates architecture specific environment settings to reduce source differences between Linux and ACPICA upstream. This patch does not affect the generation of the Linux kernel binary. Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki